iPad4 - what OS to run?

[james*b]

Hi,
I would like to speed up my iPad 4 that is only used for browsing the web. I am going to reset it and remove as many apps as possible. Is it worth upgrading the OS and if so, to what version? It currently has iOS 9.2 but I am hesitant about slowing it down.
Thanks!

 

[digitalcuriosity]

I am running 10.3.3 and see nothing wrong with upgrading when Apple offers it, if one does not trust Apple get an Android tablet.